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HPA00388RTER Datasheet(PDF) 3 Page - Texas Instruments

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Part # HPA00388RTER
Description  WLED DRIVER FOR NOTEBOOK DISPLAY
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

HPA00388RTER Datasheet(HTML) 3 Page - Texas Instruments

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DCTRL
IFB3
SW
V
O
5
9
PGND
13
1
GND
IFB4
2
3
4
6
7
8
10
11
12
14
15
16
QFNPACKAGE
16Pin3x3
(TOP VIEW)
V
BAT
TPS61180/1/2
www.ti.com
SLVS801E – DECEMBER 2007 – REVISED APRIL 2013
PINOUT
TERMINAL FUNCTIONS
TERMINAL
I/O
DESCRIPTION
NO.
NAME
1
PGND
I
Power ground of the IC. Internally, it connects to the source of the PWM switch.
2
SW
I
This pin connects to the drain of the internal PWM switch, external Schottky diode and inductor.
3
VBAT
I
This pin is connected to the battery supply. It provides the pull-up voltage for the Fault pin and battery
voltage signal. For TPS61181/2, this is also the input to the internal LDO.
4
VO
O
This pin monitors the output of the boost regulator. Connect this pin to the anode of the WLED strings.
5
ISET
I
The resistor on this pin programs the WLED output current.
6
Cin
I
Supply voltage of the IC. For TPS61181/2, it is the output of the internal LDO. Connect 0.1
μF bypass
capacitor to this pin. For TPS61180, connect an external 3.3 V supply to power the IC.
7, 8, 9
IFB1-IFB3
I
Current sink regulation inputs. They are connected to the cathode of WLEDs. The PWM loop regulates
12, 13, 14
IFB4-IFB6
the lowest VIFB to 400 mV. Each channel is limited to 25 mA current.
10
GND
I
Signal ground of the IC.
11
DCTRL
I
Dimming control logic input. The dimming frequency range is 100 Hz to 1 kHz.
15
EN
I
The enable pin to the IC. For TPS61181/2, a logic high signal turns on the internal LDO and enables the
IC. Therefore, do not connect the EN pin to the Cin pin.
16
Fault
I
Gate driver output for an external PFET used for fault protection. It can also be used as signal output for
system fault report.
Copyright © 2007–2013, Texas Instruments Incorporated
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3
Product Folder Links: TPS61180/1/2


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